US3404369A - Welding cable and terminal assembly - Google Patents

Welding cable and terminal assembly Download PDF

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Publication number
US3404369A
US3404369A US576666A US57666666A US3404369A US 3404369 A US3404369 A US 3404369A US 576666 A US576666 A US 576666A US 57666666 A US57666666 A US 57666666A US 3404369 A US3404369 A US 3404369A
Authority
US
United States
Prior art keywords
terminal
sleeves
ropes
cable
skirt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US576666A
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English (en)
Inventor
Earl I Grove
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gar Wood Industries Inc
Original Assignee
Gar Wood Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gar Wood Industries Inc filed Critical Gar Wood Industries Inc
Priority to US576666A priority Critical patent/US3404369A/en
Priority to GB37087/67A priority patent/GB1144267A/en
Priority to JP5293667A priority patent/JPS468546B1/ja
Application granted granted Critical
Publication of US3404369A publication Critical patent/US3404369A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/001—Power supply cables for the electrodes of electric-welding apparatus or electric-arc furnaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve

Definitions

  • Each rope is encased in a rubber sleeve throughout most of its length, but the bare ends of the strands project beyond the rubber sleeves and all the strands of all ropes are compressed in and electrically connected to a tubular sheet metal terminal.
  • the terminal has an integral flared skirt diverging from the portion which is compressed onto the strands and overlapping and compressed against all of the outer rubber sleeves in an area spaced from its free edge. Beyond such area and to its free edge the skirt is flared outwardly at a steeper angle.
  • the present invention relates to electrical conductors, and particularly to flexible conductor and terminal assemblies adapted to carry high amperage electric currents.
  • the overall object of the invention is to provide an improved flexible conductor able to withstand repeated flexing about relatively short radii and suitable for the severe service conditions encountered by cables employed to conduct welding current to the electrodes of resistance welding machines.
  • a more specific object is to provide an improved cable and terminal assembly of the indicated character which attains an increased effective service life.
  • FIGURE 1 is a perspective view of an electrical conductor constructed in accordance with the present invention.
  • FIGURES 2, 3 and 4 are sectional views on a larger scale taken substantially as indicated by the lines and arrows II-II, IIIIII and IVIV respectively of FIG- URE 1. 7
  • my improved cable is designed to be employed without water cooling, and preferably is constructed of a plurality of separate ropes 10-16 inclusive, rather than being formed as a single large cable, even though all parts are of like polarity.
  • Such subdivided construction is-employed in order to reduce the frictional wear between the strands.
  • Each rope is comprised of a large number of fine strands of loosely twisted soft copper wire, for maximum flexibility, and each rope is preferably constructed in accordance with my United States Patent No. 3,079,460.
  • Each rope is enclosed in a plastic sleeve 18 of a suitable elastomer such as soft synthetic rubber, the six ropes 10-15 being symmetrically grouped about a central core rope 16, and ropes 10-15 having an overall helical twist.
  • a terminal or lug portion which may be formed of an initially cylindrical silver plated copper tube.
  • a portion 22 of the terminal tube 20 is tightly compressed upon the bare extremities of the ropes to form anelectrical connection therewith.
  • Such electrical connection portion 22 is pressed to rectangular form, as indicated in FIGURES 1 and 4, and may be drilled as indicated at 23 for attachment to a suitable terminal connector (unshown).
  • This general method of forming a terminal lug portion is now known in the art, and as will be appreciated, the portions 22 are compressed under very high pressure to substantially eliminate spacing between the strands and form an efficient connection.
  • the terminal structure is provided with an integral flared skirt formed as a continuous rearward extension of the connecting portion 22 and generally designated 25.
  • the skirt portion 25 substantially overlaps the rubber sleeves 18, which extend to a position relatively close to but spaced from the fully compressed connecting portion 22, as best illustrated in FIGURE 4.
  • the rubber sleeves are secured with respect to the skirt. While such securance could be effected by means such as an adhesive, I have found it effective simply to compress the skirt portion sufficiently to grip the sleeves, as indicated in FIGURE 4.
  • the rubber sleeves 18 not only reduce friction between the individual ropes when the cable is flexed or distorted by electrical reactance, and function to reduce wear by preventing direct engagement between the skirt 25 and the ropes, but perform an additional mechanical function when the cable is bent in the area adjacent the terminal. At such times the forces transmitted through the sleeves 18, because of the fact that they are tightly held against longitudinal movement with relation to one another, force a larger proportion of the bending to occur farther away from the terminal, reducing localized bending and increasing the radius of bend. Highly localized forces tending to break the individual strands, and localized shortradius bending, are thus materially reduced.
  • the terminal is preferably formed in suitable compression dies, and the excess metal resulting from the reduction of overall cross sectional area of the terminal tube is displaced inwardly in longitudinal lines along the side edges of the terminal, as indicated at 28.
  • a flexible isopolarity electrical cable assembly including a plurality of multi-strand conductor ropes, a'plurality of flexible sleeves, one on each rope, the sleeves being shorter than the ropes and a common end of all ropes projecting beyond their sleeves, and a connecting terminal comprising a metallic portion electrically connected to said projecting ends, the novelty which comprises a skirt portion rigid with said terminal and overlapping and secured with respect to all of said flexible sleeves.

Landscapes

  • Insulated Conductors (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Ropes Or Cables (AREA)
US576666A 1966-09-01 1966-09-01 Welding cable and terminal assembly Expired - Lifetime US3404369A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US576666A US3404369A (en) 1966-09-01 1966-09-01 Welding cable and terminal assembly
GB37087/67A GB1144267A (en) 1966-09-01 1967-08-11 Improved electrical cable assembly
JP5293667A JPS468546B1 (ja) 1966-09-01 1967-08-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US576666A US3404369A (en) 1966-09-01 1966-09-01 Welding cable and terminal assembly

Publications (1)

Publication Number Publication Date
US3404369A true US3404369A (en) 1968-10-01

Family

ID=24305435

Family Applications (1)

Application Number Title Priority Date Filing Date
US576666A Expired - Lifetime US3404369A (en) 1966-09-01 1966-09-01 Welding cable and terminal assembly

Country Status (3)

Country Link
US (1) US3404369A (ja)
JP (1) JPS468546B1 (ja)
GB (1) GB1144267A (ja)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660592A (en) * 1970-02-27 1972-05-02 Haveg Industries Inc Anti-corona electrical conductor
FR2176101A1 (ja) * 1972-03-16 1973-10-26 Delta Metal Electronics
US4002820A (en) * 1974-05-03 1977-01-11 Canada Wire And Cable Limited Power cable having an extensible ground check conductor
FR2489608A1 (fr) * 1980-06-25 1982-03-05 Naito Mitsuo Embout pour cable refroidi par l'air et son procede de fabrication
US4392703A (en) * 1978-03-27 1983-07-12 The Bendix Corporation Electrical conductor having an integral electrical contact
DE3826421A1 (de) * 1988-08-03 1990-02-08 Helu Technik Heinrich Luft Gmb Einleiter-anschlusskabel fuer elektrische schweisszangen
DE4003251A1 (de) * 1990-02-03 1991-08-22 Franz Pitsch Sekundaeranschlusskabel fuer elektrische widerstands-schweisszangen u. dgl. sowie verfahren und platine zu dessen herstellung
EP1450440A1 (fr) * 2003-02-21 2004-08-25 Hager Electro S.A.S. Moyen de connexion électrique, notamment entre un disjoncteur et un bloc différentiel
US20060148276A1 (en) * 2003-01-29 2006-07-06 Jean-Pierre Renaudin Electrical connection device for bushing which supplies filaments, such as glass filaments
US20110186352A1 (en) * 2005-12-22 2011-08-04 David Charles Cecil Integral bonding attachment

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467161A (en) * 1982-11-10 1984-08-21 G & W Electric Company Switch apparatus
JP3211935B2 (ja) * 1995-07-19 2001-09-25 矢崎総業株式会社 バッテリの電極ポスト接続端子および電極ポスト接続端子の製造方法
CN106952620B (zh) 2017-03-09 2018-09-25 深圳市国华光电研究院 电润湿显示器的双稳态驱动方法及相关的电润湿显示器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1650295A (en) * 1922-10-26 1927-11-22 Joseph E Patten Electrical conductor terminal
DE511473C (de) * 1930-10-30 Siemens Schuckertwerke Akt Ges Aus mehreren Lagen von Drahtlitzen zusammengesetzter bogenfoermiger Leiter zur Stromzufuehrung fuer bewegte Teile von Schalteinrichtungen
US1904162A (en) * 1930-08-13 1933-04-18 Milliken Humphreys Electrical cable
US2480280A (en) * 1945-09-24 1949-08-30 Thomas & Betts Corp Electric connector
US3156760A (en) * 1963-06-11 1964-11-10 Gar Wood Ind Inc Welding cable with improved conductor orientation adjacent the terminals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE511473C (de) * 1930-10-30 Siemens Schuckertwerke Akt Ges Aus mehreren Lagen von Drahtlitzen zusammengesetzter bogenfoermiger Leiter zur Stromzufuehrung fuer bewegte Teile von Schalteinrichtungen
US1650295A (en) * 1922-10-26 1927-11-22 Joseph E Patten Electrical conductor terminal
US1904162A (en) * 1930-08-13 1933-04-18 Milliken Humphreys Electrical cable
US2480280A (en) * 1945-09-24 1949-08-30 Thomas & Betts Corp Electric connector
US3156760A (en) * 1963-06-11 1964-11-10 Gar Wood Ind Inc Welding cable with improved conductor orientation adjacent the terminals

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660592A (en) * 1970-02-27 1972-05-02 Haveg Industries Inc Anti-corona electrical conductor
FR2176101A1 (ja) * 1972-03-16 1973-10-26 Delta Metal Electronics
US4002820A (en) * 1974-05-03 1977-01-11 Canada Wire And Cable Limited Power cable having an extensible ground check conductor
US4392703A (en) * 1978-03-27 1983-07-12 The Bendix Corporation Electrical conductor having an integral electrical contact
US4394533A (en) * 1980-06-25 1983-07-19 Mitsuo Naito Air-cooled cables with terminals and method of producing same
DE3124863A1 (de) * 1980-06-25 1982-03-25 Mitsuo Kofu Yamanashi Naito Endstueck fuer luftgekuehlte kabel und verfahren zur herstellung des endstuecks
FR2489608A1 (fr) * 1980-06-25 1982-03-05 Naito Mitsuo Embout pour cable refroidi par l'air et son procede de fabrication
DE3826421A1 (de) * 1988-08-03 1990-02-08 Helu Technik Heinrich Luft Gmb Einleiter-anschlusskabel fuer elektrische schweisszangen
DE4003251A1 (de) * 1990-02-03 1991-08-22 Franz Pitsch Sekundaeranschlusskabel fuer elektrische widerstands-schweisszangen u. dgl. sowie verfahren und platine zu dessen herstellung
US20060148276A1 (en) * 2003-01-29 2006-07-06 Jean-Pierre Renaudin Electrical connection device for bushing which supplies filaments, such as glass filaments
US7232348B2 (en) * 2003-01-29 2007-06-19 Saint-Gobain Vetrotex France S.A. Electrical connection device for bushing which supplies filaments, such as glass filaments
EP1450440A1 (fr) * 2003-02-21 2004-08-25 Hager Electro S.A.S. Moyen de connexion électrique, notamment entre un disjoncteur et un bloc différentiel
US20110186352A1 (en) * 2005-12-22 2011-08-04 David Charles Cecil Integral bonding attachment
US8246390B2 (en) 2005-12-22 2012-08-21 Tensolite, Llc Integral bonding attachment

Also Published As

Publication number Publication date
GB1144267A (en) 1969-03-05
JPS468546B1 (ja) 1971-03-04

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